sneakiness sneaker • sneaking · · · Info · Definitions · Synonyms · Characters · · sneakiness · · Text Latin · · Script 10 · · Length Definitions · · · (noun) a disposition to be sly and stealthy and to do things surreptitiously. Synonyms: furtiveness, stealthiness. · · Noun Definition 1 Synonyms · · · furtiveness · · Synonym 1 stealthiness · · Synonym 2 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 i latin small letter i U+0069 k latin small letter k U+006B n latin small letter n U+006E s latin small letter s U+0073